1st PUC Biology Syllabus. We covered all the 1st PUC Biology Syllabus MCQs in this post for free so that you can practice well for the exam.
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1st PUC Biology Syllabus Objective for Students
Which one of the following organelles is not found in prokaryotic cells?
(a) Cell wall
(b) Mitochondria
(c) Plasma membrane
(d) Ribosome
Option b – Mitochondria
Which one of the following is the smallest cell?
(a) Mycoplasma
(b) Amoeba
(c) White blood cells
(d) Red blood cells
Option a – Mycoplasma
In prokaryotic organisms, the nuclear region is not surrounded by a membrane. This undefined nuclear region is known as
(a) Nucleic acid
(b) Nucleoid
(c) Nucleolus
(d) Nucleosome
Option b – Nucleoid
Which one among the following statements is correct?
(a) Prokaryotic cells possess a nucleus.
(b) Cell membrane is present both in plant and animal cells.
(c) Mitochondria and chromoplasts are not found in eukaryotic cells.
(d) Ribosomes are present in eukaryotic cells only.
Option b – Cell membrane is present both in plant and animal cells
The fruit softens and ripens due to
(a) conversion of starch from sugar
(b) jelly formation of an acid pH
(c) incorporation of pectate in the middle lamella
(d) dissolution of the middle lamella
Option d – dissolution of the middle lamella
Which one of the following types of cells has the ability to develop into any type of cell?
(a) Endodermal cells
(b) Ectodermal cells
(c) Stem cells
(d) Muscle cells
Option c – Stem cells
Which one of the following organelles is the smallest membrane-bound organelle?
(a) Ribosome
(b) Golgi bodies
(c) Lysosome
(d) Nucleolus
Option c – Lysosome
Which one of the following is not found in animal cells?
(a) Free ribosomes
(b) Mitochondria
(c) Nucleolus
(d) Cell wall
Option d – Cell wall
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